參數(shù)資料
型號: OP495
廠商: Analog Devices, Inc.
英文描述: DUAL/QUAD RAIL-TO-RAIL OPERATIONAL AMPLIFIERS
中文描述: 雙/四軌至軌運算放大器
文件頁數(shù): 11/12頁
文件大?。?/td> 328K
代理商: OP495
OP295/OP495
REV. B
–11–
8
1
4
2
3
58.7k
100k
C
R
V+
FREQ OUT
f
OSC
=
< 350Hz @ V+ = +5V
1
RC
100k
1/2
OP295/
OP495
Figure 13. Square Wave Oscillator Has Stable Frequency
Regardless of Supply Changes
V
IN
10k
V+
10k
100k
90.9k
20k
20k
V+
SPEAKER
2.2
μ
F
1/4
OP295/
OP495
1/4
OP295/
OP495
1/4
OP295/
OP495
Figure 14. Single Supply Differential Speaker Driver
High Accuracy, Single-Supply, Low Power Comparator
T he OP295/OP495 makes an accurate open-loop comparator.
With a single +5 V supply, the offset error is less than 300
μ
V. Fig-
ure 15 shows the OP295/OP495’s response time when operating
open-loop with 4 mV overdrive. It exhibits a 4 ms response time at
the rising edge and a 1.5 ms response time at the falling edge.
10
0%
100
90
5ms
2V
1V
OUTPUT
(5mV OVERDRIVE
@ OP295 INPUT)
INPUT
Figure 15. Open-Loop Comparator Response Time with
5 mV Overdrive
OP295/OP495 SPICE MODE L Macro-Model
* Node Assignments
*
Noninverting Input
*
*
*
*
*
*
.SUBCK T OP295
1
*
* INPUT ST AGE
*
I1
99
4
2E-6
R1
1
6
5E3
Inverting Input
Positive Supply
Negative Supply
Output
2
99
50
20
R2
CIN
IOS
D1
D2
EOS
Q1
Q2
R3
R4
*
* GAIN ST AGE
*
R7
10
G1
98
EREF 98
R5
99
R6
39
*
* COMMON MODE ST AGE
*
ECM
30
98
R12
30
31
R13
31
98
*
* OUT PUT ST AGE
*
I2
18
50
V2
99
12
Q4
10
14
R11
14
50
M3
15
10
M4
13
10
D8
10
22
V3
22
50
M2
20
10
Q5
17
17
Q6
18
17
R8
18
99
Q7
18
19
R9
99
19
C2
18
99
M6
15
12
M1
20
18
D4
21
18
V4
99
21
R10
10
11
C3
11
20
.MODEL QNA NPN (IS=1.19E-16 BF=253 NF=0.99 VAF=193 IK F=2.76E-3
+ ISE=2.57E-13 NE=5 BR=0.4 NR=0.988 VAR=15 IK R=1.465E-4
+ ISC=6.9E-16 NC=0.99 RB=2.0E3 IRB=7.73E-6 RBM=132.8 RE=4
RC=209
+ CJE=2.1E-13 VJE=0.573 MJE=0.364 FC=0.5 CJC=1.64E-13 VJC=0.534
MJC=0.5
+ CJS=1.37E-12 VJS=0.59 MJS=0.5 T F=0.43E-9 PT F=30)
.MODEL QPA PNP (IS=5.21E-17 BF=131 NF=0.99 VAF=62 IK F=8.35E-4
+ ISE=1.09E-14 NE=2.61 BR=0.5 NR=0.984 VAR=15 IK R=3.96E-5
+ ISC=7.58E-16 NC=0.985 RB=1.52E3 IRB=1.67E-5 RBM=368.5 RE=6.31
RC=354.4
+ CJE=1.1E-13 VJE=0.745 MJE=0.33 FC=0.5 CJC=2.37E-13 VJC=0.762
MJC=0.4
+ CJS =7.11E-13 VJS=0.45 MJS=0.412 T F=1.0E-9 PT F=30)
.MODEL MN NMOS (LEVEL=3 VT O=1.3 RS=0.3 RD=0.3
+ T OX =8.5E-8 LD=1.48E-6 NSUB=1.53E16 UO=650 DELT A=10 VMAX =2E5
+ X J=1.75E-6 K APPA=0.8 ET A=0.066 T HET A=0.01 T PG=1 CJ=2.9E-4
PB=0.837
+ MJ=0.407 CJSW=0.5E-9 MJSW=0.33)
.MODEL MP PMOS (LEVEL=3 VT O=–1.1 RS=0.7 RD=0.7
+ T OX =9.5E-8 LD=1.4E-6 NSUB=2.4E15 UO=650 DELT A=5.6 VMAX =1E5
+ X J=1.75E-6 K APPA=1.7 ET A=0.71 T HET A=5.9E-3 T PG=–1 CJ=1.55E-4
PB=0.56
+ MJ=0.442 CJSW=0.4E-9 MJSW=0.33)
.MODEL DX D(IS=1E-15)
.MODEL DZ D (IS=1E-15, BV=7)
.MODEL QP PNP (BF=125)
.ENDS
2
1
1
5
6
7
8
9
8
9
5
2
2
3
3
6
5
7
50
50
5E3
2E-12
0.5E-9
DZ
DZ
POLY (1) (31,39) 30E-6 0.024
4
QP
4
QP
25.8E3
25.8E3
98
10
0
39
50
270E6
POLY (1) (9,8) –4.26712E-9 27.8E-6
(39, 0) 1
100E3
100E3
POLY(2) (1,39) (2,39) 0 0.5 0.5
1E6
100
1.59E-6
DC 2.2763
50
QNA
33
13
13
50
50
DX
DC
6
14
14
99
QPA
99
QPA
2.2E6
99
QPA
8
20E-12
17
99
19
99
DX
DC
6
6E3
50E-12
1.0
MN L=9E-6 W=102E-6 AD=15E-10 AD=15E-10
MN L=9E-6 W=50E-6 AD=75E-11 AS=75E-11
MN L=9E-6 W=2000E-6 AD=30E-9 AS=30E-9
1.0
4.0
1.0
MP
MP
L=9E-6 W=27E-6 AD=405E-12 AS=405E-12
L=9E-6 W=2000E-6 AD=30E-9 AS=30E-9
相關(guān)PDF資料
PDF描述
OP295 DUAL/QUAD RAIL-TO-RAIL OPERATIONAL AMPLIFIERS
OP295GP DUAL/QUAD RAIL-TO-RAIL OPERATIONAL AMPLIFIERS
OP495GP DUAL/QUAD RAIL-TO-RAIL OPERATIONAL AMPLIFIERS
OP295GS DUAL/QUAD RAIL-TO-RAIL OPERATIONAL AMPLIFIERS
OP495GS DUAL/QUAD RAIL-TO-RAIL OPERATIONAL AMPLIFIERS
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